Add note warning users that Postgres' port number is forced in the service

file, mainly because it's traditional in Red Hat installations to set it

there rather than in postgresql.conf.  (There are minor usability benefits

to doing it this way though, for example that the postmaster's port number

is visible in "ps" as part of its command line.)

diff -Naur postgresql-9.2rc1.orig/src/backend/utils/misc/postgresql.conf.sample postgresql-9.2rc1/src/backend/utils/misc/postgresql.conf.sample

--- postgresql-9.2rc1.orig/src/backend/utils/misc/postgresql.conf.sample	2012-08-23 18:06:49.000000000 -0400

+++ postgresql-9.2rc1/src/backend/utils/misc/postgresql.conf.sample	2012-09-01 21:57:55.498629897 -0400

@@ -61,6 +61,8 @@

 					# defaults to 'localhost'; use '*' for all

 					# (change requires restart)

 #port = 5432				# (change requires restart)

+# Note: In RHEL/Fedora installations, you can't set the port number here;

+# adjust it in the service file instead.

 #max_connections = 100			# (change requires restart)

 # Note:  Increasing max_connections costs ~400 bytes of shared memory per

 # connection slot, plus lock space (see max_locks_per_transaction).